Explosion-engine valve.



E. PFLBIDERER. EXPLOSION ENGINE VALVE. APPLICATION FILED 00120, 1913 Patented Dec. 8, 1914.

UNITED STATES PATENT OFFICE.

EDWARD PFLEIDERER, OF CLIFTON HILL, VICTOR-IA, AUSTRALIA.

EXPLOSION-ENGINE VALVE.

Application filed October 20, 1913.

To all whom it may concern Be it known that 1, EDWARD PFLEIDEKER, a subject of the King of Great Britain and Ireland; &c., residing at Clifton Hill, in the State of Victoria, Commonwealth of Australia, have invented certain new and useful Improvements in Explosion-Engine Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I l

'This invention relates to improvements in valves of rotary type for internal combustion or explosioire'ngines, and it allows of the use of one simple solid valve for both intake to and exhaust from the heads of a plurality of cylinders, and of the use of combustion chambers of the most effective shapes. The inlets to and outlets from the cylinders may be made large for rapid action and easy gas flow. Valve pockets in the cylinders are avoided, and my valves are j aeketed and water cooled. Noisy action is avoided, the cylinders may be symmetrical and well balanced, and the whole mechanism simple, eilicient, and easily kept in order.

The accompanying drawings illustrate diagrammatically an application of the invention.

Fi'mre 1 snows a sectional plan on line A of Fig. 2; Figs. 2. 3, and l are elevations in vertical section of part of an engine with my valve in successively taken positions.

Fig. 5 is an elevation in vertical section showing parts at right angles to those in Fig. 2. v Fig. (3 shows a plan of my valve and Fig. Tshows a-sectional end view of it.

These views are not to be taken to indicate those relative dimensions or those numbers of parts. which are however, important matters of design requiring attention w hen proceeding to construct. For example three cylinders are shown. but the valve can be suited to more or less, as to motors having pairs of cylinders.

l .2, and 3 represent cylinders; dotted lines it, :3, and 6 indicate pistons, and 7, 8, and 9 are passages into heads of these cylinders. to allow both of intake and of exhaust. Passages 7, 8 and 9 can be of larger sectianal area relatively to the cylinders in practice than is shown and can be straight instead of curved in the cases shown of the latter form. The direction of piston move- Specification of Letters Patent.

Patented Dec. 8, 1914.

Serial No. 796,284.

ments is shown by arrows in each figure. The valve rotates in one direction continuously as shown by arrows.

is a valve consisting of a conical body having -in its surface-respective recesses forming passages for the inlet to and exhaust from the cylinders. The valve spindle 15 passes through a packing gland 10, and may have any suitable supports providcd with ball or other anti-friction bearings 17. The valve has a conical seating 11 adjustment therein being elfected longitudinally, as by setscrews 16. -Spindle 15 is rotated by any suitable means as a gear wheel 12 thereon. driven by a silent chain 13 from the crank shaft as will be well understood, so that there is one rotation of the valve to each explosion of a cylinder, or the group of explosions of the series of cylinders of the engine which will work on the l cycle principle.

18 is a supporting bracket. The cylinders are water jacketed, as also is the valve, as shown in Figs. 1, 2. and 5, and 14 represent water spaces to cool the valve. If the valve were of sutliciently large size it could also be made hollow and be water cooled through its spindle. A special groove or recess '21 is provided along the surface of the valve. to serve as an exhaust passage, and close behind it is a recess 20 as an inlet passag'e. These passages in turn opento the cvlinder passages 7, 8, 9 aforesaid. 23 is the fuel inlet to groove 20. A suitable proportion of the periphery of the valve is left unrecessed and adapted to keep passages 7. 8 and 9 closed at the proper times relatively to the compression and power strokes iii each cylinder. 32 is an inlet to the water jacket, and 24 IS a passage in the valve casing to receive gases leavingthe exhaust passage 21.

At 22 Figs. 3, 4, and 7, there is a groove along the valve surface, and this serves to are2-Fig. 2,,in cylinder 2 the power stroke begins, in cylinder 3 a charge is entering, and cylinder 1 is exhausting; Fig. 3, the power stroke is beginning in cylinder 3, the charge is entering cylinder 1, and exhaust is occurring from cylinder 2; Fig. 4, the power stroke is beginning in cylinder 1, the charge is entering cylinder-2 and exhaust is proceeding from cylinder 3. The pistons shown at the power stroke are shown at the uppermost point of their travel. In each of the other positions of the pistons shown, the pistons are two-thirds of a stroke from their point of uppermost travel, and therefore one-third of a stroke/ from their point of lowermost travel. It is evident, therefore, that between the positionsshownin Figs. 2 and 3, 3 and 4, and 4 and 2, each of the pistons has traversed one and one-third strokes. A lubricating inlet 19, shown in Figs. 2 and 5 only, may be at will used to enable the valve to work more freely.

Recess 22- does not communicate with the passages 23 or 2% in the casing. Gland l0 prevents suction of air past it into valve intake groove 20. The casing which contains the details above the cylinders may be in one or more pieces as proves convenient.

The invention is-not limited to construction having a water jacketfor cooling. purposes. Ignition devices are located and constructed in any known manner adapted to produce the sparks in the tops of the cylinders, and are not claimed or illustrated.

Having described this invention, what is claimed by Letters Patent is 1. In a rotary valve for internal combus tion engines, the combination with a valve casing, carrying an opening leading to a cylinder of said engine, of a valve fitting'in said casing, said valve carrying a solid portion adapted to close said opening during the compression and explosion cycles of the engine, said solid portion carrying a groove adapted to register with said opening to the cylinder atthe time of explosion in the cylinder.

2. In a rotary valve for internal coinbusv tionengines, the combination with a valve casing, carrying an opening leading to a cylinder of said engine, of a valve fitting in said casing, said valve carrying ,rece'sses adapted to register with said opening during the exhaust and suction cycles of the engine, carrying a solid portion adapted to close said opening during the compression inder of said engine,-of a valve shaft journaled in said casing, a valve mounted on said shaft, two set screws, mounted at op posite ends of said shaft and engaging with the ends thereof, adapted to set said valve in position in the casing, said valve carrying a solid portion adapted to close said opening to said cylinder during the compression and explosion cycles of the engine, said solid portion carrying a groove adapted to register with said opening to said cylinderat the time of explosion in the cylinder.

&. In a rotary valve for internal combustion engines, the combination with a valve casing carrying an opening leading to a cylinder of said engine, of a valve shaft journaled in said casing, a valve mounted on said shaft, ineans to set said valve in position in said casing, said valve carrying a solid portion adapted to close said opening during the compression and explosion cycles of the engine,-and further carrying a groove in said solid portion adapted 'to register with said opening to the cylinder at the time of explosion in the cylinder.

5. In a rotary valve for internal'combustion engines, the combination with a. valve casing carrying an opening leading to a cylinder of said engine, of a valve shaft journaled in said casing, a valve mounted on said shaft, means to set said valve in position in said casing, said valve carrying re cesses adapted to register with said opening during the exhaust and suction cycles of the engine, further carrying a solid portion adapted to close said opening during the compression and explosion cycles of the engine, and further carrying a groove in said solid portion adapted to register with said opening to the cylinder at the time of explo sion in the cylinder.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

(iEORGiE G. TURRI, BEATRICE M. Lows.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Wilmington, D. G." V 

